|
US1878492A
|
|
Protective device, consisting of alpha gas gun
|
|
US1878491A
|
|
Explosive device
|
|
US1901960A
|
|
Insecticidal solution
|
|
US1878490A
|
|
Grenade or pressure container
|
|
US1878488A
|
|
Generation of persistent disabling gases
|
|
US1878489A
|
|
Generation of persistent disabling gases
|
|
US1901959A
|
|
System for protecting banks, stores, and the like, against robbery, by gas and smoke
|
|
US1892050A
|
|
Expansion chamber type gas gun
|
|
US1805332A
|
|
Bank vault ventilator system
|
|
US1819090A
|
|
Gas containing projectile or long range tear gas shell
|
|
US1663834A
|
|
Fountain-pen-shaped pistol
|
|
US1600223A
|
|
Cartridge containing gas-generating chemical
|
