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Patent classifications
A
HUMAN NECESSITIES
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A44
HABERDASHERY; JEWELLERY
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A44B
BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
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11/00
Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
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A44B11/25
with two or more separable parts
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A44B11/2503
Safety buckles
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A44B11/2507
actuated by a push-button
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A44B11/2515
acting parallel to the main plane of the buckle and perpendicularly to the direction of the fastening action
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A44B11/2519
with two buttons acting in opposite directions
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