Bommer Spring Hinge Co. Inc.

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Landrum, SC, US

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Information Patent Grant
Adjustable door spring hinge with fixed minimum tension
- Patent number 3,965,533
- Issue date Jun 29, 1976
- Bommer Spring Hinge Co. Inc.
- Peter E. Frohlich
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

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