CH20800A
(en )
1901-03-31
Funnel for the production of welded gas pipes in one go
CH21225A
(en )
1901-06-15
Device for the production of welded sheet metal pipes
CH18917A
(en )
1900-04-30
Carburation apparatus for the production of air gas
CH18286A
(en )
1899-11-30
Apparatus for the manufacture of corrugated pipes
CH20261A
(en )
1900-12-31
Apparatus for the production of compressed gas
GB189925009A
(en )
1900-11-24
Improved Apparatus for the Production of Gas.
GB189916619A
(en )
1899-11-18
Improved Process of and Apparatus for the Production of Illuminating Gas.
GB190014426A
(en )
1901-05-18
Improvements in Apparatus for use in the Manufacture of Gas
CH19149A
(en )
1900-05-15
Acetylene gas apparatus
CH20448A
(en )
1901-01-31
Acetylene gas apparatus
CH20537A
(en )
1901-02-15
Acetylene gas apparatus
CH18844A
(en )
1900-03-15
Acetylene gas apparatus
CA66755A
(en )
1900-03-26
Apparatus for the manufacture of gas
CH16286A
(en )
1898-10-31
Equipment for the production of acetylene gas
CH23103A
(en )
1902-05-31
Acetylene gas purifier
GB189925374A
(en )
1900-03-10
Improvements in Apparatus for Use in the Manufacture of Coal Gas.
CH17167A
(en )
1899-09-15
Apparatus for the production of acetylene gas
CH16935A
(en )
1899-03-15
Gas pipe connection
CH20851A
(en )
1901-04-15
Apparatus for the production of acetylene gas
CH18991A
(en )
1900-04-15
Apparatus for the production of acetylene gas
CA66486A
(en )
1900-03-06
Apparatus for utilizing the waste gases in the production of aluminum
CA63192A
(en )
1899-06-05
Gas making apparatus
CH18819A
(en )
1900-03-15
Incandescent bodies for gas heating
CH57344A
(en )
1913-01-02
Process for the production of gas and bubble-free metal blocks
AT1608B
(en )
1900-06-25
Process for the production of a tar mortar