Vaizdas:Pickett slide rule.jpg

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Pickett_slide_rule.jpg (558 × 152 taškų, rinkmenos dydis: 63 KiB, MIME tipas: image/jpeg)

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This is a scan of a Pickett pocket slide rule, done by me, Benjamin Crowell, in 2005. The slide rule does not have a copyright notice on it, and works published in the U.S. without a copyright notice before 1977 are in the public domain. I therefore think the slide rule itself is in the public domain under U.S. law. I'm making my scan available under the GFDL license.

GNU head Suteikiamas leidimas kopijuoti, platinti ir/ar redaguoti šį dokumentą pagal GNU Free Documentation licencijos versijos 1.2 sąlygas, publikuotas Free Software Foundation; be nekintamų dalių, be priekinių ir galinių tekstinių žymų viršeliuose. Šios licencijos kopija įtraukta dalyje, pavadintoje GNU Free Documentation License. Tik 1.2
date/time username edit summary
19:25, 23 April 2005 en:User:Bcrowell
19:18, 23 April 2005 en:User:Bcrowell (This is a scan of a Pickett pocket slide rule, done by Benjamin Crowell in 2005. The slide rule does not have a copyright notice on it, and works published in the U.S. without a copyright notice before 1977 are in the public domain. I therefore think the )

Originalus įkėlimo įrašas

Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version.

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  • (del) (cur) 19:33, 23 April 2005 . . en:User:Bcrowell Bcrowell ( en:User_talk:Bcrowell Talk) . . 558x152 (20510 bytes) (This is a scan of a Pickett pocket slide rule, done by me, Benjamin Crowell, in 2005. The slide rule does not have a copyright notice on it, and works published in the U.S. without a copyright notice before 1977 are in the public domain. I therefore think)
  • (del) (rev) 19:24, 23 April 2005 . . en:User:Bcrowell Bcrowell ( en:User_talk:Bcrowell Talk) . . 634x174 (25206 bytes) (This is a scan of a Pickett pocket slide rule, done by Benjamin Crowell in 2005. The slide rule does not have a copyright notice on it, and works published in the U.S. without a copyright notice before 1977 are in the public domain. I therefore think the )
  • (del) (rev) 19:18, 23 April 2005 . . en:User:Bcrowell Bcrowell ( en:User_talk:Bcrowell Talk) . . 652x203 (27548 bytes) (This is a scan of a Pickett pocket slide rule, done by Benjamin Crowell in 2005. The slide rule does not have a copyright notice on it, and works published in the U.S. without a copyright notice before 1977 are in the public domain. I therefore think the )

Captions

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A section of a Pickett Model 300-ES Log-Log rule

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Data/LaikasMiniatiūraMatmenysNaudotojasPaaiškinimas
dabartinis23:23, 2 liepos 2009Versijos 23:23, 2 liepos 2009 miniatiūra558 × 152 (63 KiB)wikimediacommons>DicklyonEnhanced for readability

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