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1904-10-12 |
1905-03-21 |
William Henry Dunn |
Building-wall and concrete block for same.
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1906-04-30 |
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Frank L Deal |
Cement block.
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1910-12-05 |
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Robert H Waller |
Concrete wall construction.
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1914-01-13 |
Bernard J D Blackmore |
System of hollow-wall construction of concrete blocks.
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1918-05-21 |
1918-12-03 |
Henry V Wesche |
Toy building-blocks.
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1928-05-31 |
1930-03-25 |
Nash John |
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1931-07-16 |
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Building unit
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1935-04-15 |
1937-11-02 |
Horace C Mathers |
Masonry
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1935-11-26 |
1939-01-10 |
Arthur E Troiel |
Building block
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1940-07-08 |
1944-08-15 |
Evans Prod Co |
Wood flooring
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1967-01-18 |
1969-01-21 |
Stark Ceramics Inc |
Interlocking building block
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1970-10-26 |
1973-12-25 |
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Universal blocks
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1990-07-13 |
1994-10-04 |
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Wall construction and spacer for use therewith
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1990-08-22 |
1994-10-04 |
Denis Bergeron |
Building block
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1994-08-10 |
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Panel, dowel and block construction kit
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1996-08-21 |
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Southco |
Support panel for supporting external wall forming members
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1997-01-17 |
1999-04-06 |
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Reconstituted wood block modular building system
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1997-05-08 |
2000-07-11 |
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Building block having a wooden attachment layer
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1999-11-24 |
2000-02-17 |
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Universal component
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2001-07-19 |
2011-11-30 |
G.J. Den Daas Management B.V. |
System of stackable blocks as well as block and a joining element of the system
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2002-04-11 |
2004-03-04 |
Sinclair Robert F. |
Building block and system for manufacture
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2002-05-22 |
2003-11-22 |
Les Materiaux De Construction Oldcastle Canada Inc. |
An artificial piece of masonry and a kit for forming a masonry wall
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2003-05-08 |
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Dry set block wall building system
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2005-12-14 |
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2006-03-29 |
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2006-10-23 |
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2008-05-08 |
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Johnson Heater Corp. |
No-through-metal structural panelized housing system for buildings and enclosures and economical process for manufacture of same
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2009-09-26 |
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2010-09-24 |
2012-03-29 |
Fmi Products, Llc |
Pre-engineered brick panel and methods of making and installing same
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2010-10-15 |
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2013-10-02 |
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