Plate-Guard for Secondary Batteries.
Description:
Patent for a plate-guard for secondary batteries. The invention relates to guard sheaths or envelopes to provide light, rigid, and inexpensive frame of acid-proof material to be build around the plate to protect the exposed metal of the plate.
Date:
November 20, 1917
Creator:
Luthy, Joseph O.
Item Type:
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Partner:
UNT Libraries Government Documents Department