US1744181A
|
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Attachment for dampers
|
US1671171A
|
|
Ventilator
|
US1073307A
|
|
Automatic self-closing attachment for windows.
|
US1049009A
|
|
Combined trough and glass-support for glazed structures.
|
US1049175A
|
|
Device for operating windows or shutters.
|
US1049008A
|
|
Device for operating windows or shutters.
|
US740954A
|
|
Swinging window.
|
US740953A
|
|
Device for operating windows or shutters.
|
US705491A
|
|
Glazed roof or structure.
|
US698589A
|
|
Self-closing window.
|
US686869A
|
|
Self-closing window.
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CA307356A
|
|
Damper mechanism
|