发明授权
US3694303A Packing block 失效
包装块

Packing block
摘要:
The invention relates to a packing block comprising removable layers of foil for regulating the thickness of the block, the foils on one face being of a different thickness from those of the other, and the thickness of the foils on one face being a multiple of the thickness of the foils on the other, the invention being intended for making packing blocks for arresting play or balancing, particularly in the field of precision equipment.
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