Hemmi slide rule with its leather case
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Product details
| Management number | 19111823 | Release Date | 2025/10/18 | List Price | $31.35 | Model Number | 19111823 | ||
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| Category | |||||||||
Hemmi was a Japanese company that began applying celluloid to bamboo to make slide rules that were resistant to shrinking or expanding.
The company also made slide rules for export, and became the sole supplier of linear slide rules to the Frederick W. Post Company of Chicago by 1932.
A slide rule is a mechanical analog computer that consists of a body and a slider with inscribed numerical scales.
The example shown is a duplex rule, which has scales on both the front and back. In in
| Category | Vintage & collectibles > Other |
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| Size | N/A |
| Brand | None |
| Condition | Good |
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