Keuffel Websites
International Slide Rule Museum. ISRM is the world's largest free digi
Slide Rule Museum/Library/Encyclopedia
1,431,940
$
960.00
Sphere Research Corporation - Used Electronic Test Equipment, Spare Pa
Sphere's site contains an original e-library, including quotes, business practices and ethics, short stories and columns. Plus, an Electronic Test Equipment and Slide Rule on-line warehouse with engineering resources
1,258,926
$
960.00
Slide Rules
Instructions on using slide rules, guidance on the price of slide rules and pictures of slide rules.
2,683,376
$
480.00
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Sphere's site contains an original e-library, including quotes, business practices and ethics, short stories and columns. Plus, an Electronic Test Equipment and Slide Rule on-line warehouse with engineering resources
1,530,386
$
480.00
Antique Surveying Instruments, Restoration, Repair, Sales of Surveying
4,620,407
$
240.00
Greg's Slide Rules
Collection of Slide Rules and Documentation
Not Applicable
$
8.95
Antique Surveying Instruments, Restoration, Repair, Sales of Surveying
Not Applicable
$
8.95
