CH22428A
(en )
1902-01-31
Device designed to develop the strength and agility of the ring fingers (4th fingers) in the study of the piano
FR4049E
(en )
1905-05-03
Device called "pianistophile" intended to develop the forces and agility of the ring fingers (fourth fingers) in the study of the piano
FR349E
(en )
1902-12-13
A device intended to facilitate the teaching of elementary calculus in primary schools called "universal calculator richaud"
FR339725A
(en )
1904-06-17
Apparatus intended to indicate the presence or absence of air in the vapor
FR335274A
(en )
1904-01-18
Use of sawdust to replace the feather used in bottle glassworks and sawdust dispensing apparatus
FR1400E
(en )
1903-07-22
Apparatus intended for lifting liquids in general
FR345796A
(en )
1904-12-15
Apparatus for the dissolution and proportional introduction of solid scale inhibitors in steam boilers
FR6572E
(en )
1907-01-07
Apparatus for the dissolution and proportional introduction of solid scale inhibitors in steam boilers
FR334194A
(en )
1903-12-14
Apparatus used to saturate beer with carbonic acid and to dispense it
FR323476A
(en )
1903-03-07
Indicating apparatus intended to record the time of arrival of pigeons in races and for similar purposes
FR340354A
(en )
1904-07-05
Improvements in the treatment of shale oil and other similar substances
FR1542060A
(en )
1900-01-01
Assembly device for gantry cranes intended for the construction of hangars and others
CH21871A
(en )
1901-10-31
Device for taking and displaying series of images intended to represent animated seenes
FR13158E
(en )
1911-02-09
Device to concentrate by the evaporation of detergents and other liquids
CH27928A
(en )
1904-03-15
Apparatus intended to indicate in advance the probable date of childbirth
FR390524A
(en )
1908-10-07
Device to volatilize liquid perfumes and all other products
FR319131A
(en )
1902-11-05
Mechanism applicable to the operation of chairs for surgeons or dentists and other similar uses
FI1304A
(en )
1900-08-01
"Sampo" cashier and checkout facility
FR332540A
(en )
1903-10-30
New device for purifying water and other liquids
FR3011E
(en )
1904-07-29
New device for filtering wines and other liquids
FR481941A
(en )
1917-01-31
Improvements in apparatus for the destructive distillation of sewage and other similar materials
FR353236A
(en )
1905-09-06
Device mechanically performing the simultaneous laying and removing of the sheets in platinum printing presses
CH14229A
(en )
1897-10-31
Further training in devices intended for heating and cooling liquids or gases using other liquids or gases
FR1156E
(en )
1903-06-10
Water and other liquid meter
FR325166A
(en )
1903-04-20
Improvements in the construction of leaves for trimmings and haberdashery trades