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- HP-41
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HP-41 Hardware
Everything about 41C 41CV and 41CX Hardware - 106 Topics
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Last post by Garth
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HP-41 Hardware
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HP-41 Software
Programs for HP-41 - 75 Topics
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Last post by Garth
Wed Sep 17, 2025 4:51 pm
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HP-41 Software
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HP-41 Documentation
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Last post by mike-stgt
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HP-41 Documentation
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HP-41 Emulators/Simulators
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Wed Jan 07, 2026 5:49 pm
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HP-41 Emulators/Simulators
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Programming
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Last post by mike-stgt
Sun Jan 11, 2026 3:10 pm
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Programming
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Card Reader
82104A - 12 Topics
- 34 Posts
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Last post by markgreco
Mon Oct 14, 2024 10:25 am
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Card Reader
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Bar Code Wand
82153A - 6 Topics
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Last post by mike-stgt
Wed Sep 17, 2025 12:03 pm
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Bar Code Wand
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Digital Cassette Drive
82161A - 4 Topics
- 32 Posts
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Last post by mhn41cx
Wed Dec 25, 2024 11:33 pm
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Digital Cassette Drive
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Buy & Sell
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Last post by Trapeza
Sun Dec 21, 2025 8:46 am
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Buy & Sell
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Other HP Calculators
All other HP calculators - 18 Topics
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Last post by mike-stgt
Fri Aug 01, 2025 11:59 am
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Other HP Calculators
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General Discussion
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General Discussion
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