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US1379767A
|
|
Switch mechanism
|
|
US1342549A
|
|
Switch mechanism with door-interlock
|
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US1367912A
|
|
Safety panel-box
|
|
US1324555A
|
|
Safety panel-box.
|
|
US1428849A
|
|
Safety panel box
|
|
US1432871A
|
|
Switchboard mechanism
|
|
US1399497A
|
|
Supporting-bracket for switch mechanism
|
|
US1399498A
|
|
Safety-switch mechanism
|
|
US1342219A
|
|
Safety switch mechanism
|
|
US1342547A
|
|
Multiple-unit safety-switchboard
|
|
US1399496A
|
|
No-voltage release-switch
|
|
US1302674A
|
|
Clamping device.
|
|
US1277321A
|
|
Meter-panel.
|
|
US1420111A
|
|
Safety panel box
|
|
US1342546A
|
|
Multiple-unit safety-switchboard
|
|
US1399494A
|
|
Safety-switch-operating device
|
|
US1342545A
|
|
Safety panel-box
|
|
US1399493A
|
|
Switch mechanism
|
|
US1399491A
|
|
Switch blade and process
|
|
US1399490A
|
|
Electric-switch mechanism
|
