|
US1915958A
|
|
Drinking cup holder
|
|
US1087329A
|
|
Apparatus to indicate the stoppage of carriers in the transmission-tubes of pneumatic-despatch-tube systems.
|
|
US963480A
|
|
Switchboard for electrical conductors.
|
|
US885878A
|
|
Steering-rod connection.
|
|
US813674A
|
|
Clamping-sleeve for pneumatic-despatch tubes.
|
|
US832632A
|
|
Multiple contact for electrical condensers.
|
|
US796094A
|
|
Pneumatic-despatch-tube apparatus.
|
|
US760029A
|
|
Telegraph-sounder.
|
|
US757785A
|
|
Spring-jack for telegraph-switchboards.
|
|
US776622A
|
|
Resonator.
|
|
US717776A
|
|
Quadruplex telegraph system.
|
|
US682433A
|
|
Resonator.
|
|
US688554A
|
|
Circuit making and breaking device.
|
|
US681932A
|
|
Telegraphic recording apparatus.
|
|
US679518A
|
|
Electrical stop for engines.
|
|
US653941A
|
|
Telegraph switching apparatus.
|
|
US631132A
|
|
Telegraph-switchboard.
|
