BE422840A - - Google Patents

Info

Publication number
BE422840A
BE422840A BE422840DA BE422840A BE 422840 A BE422840 A BE 422840A BE 422840D A BE422840D A BE 422840DA BE 422840 A BE422840 A BE 422840A
Authority
BE
Belgium
Prior art keywords
metal
hardened steel
driving point
desc
tube
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE422840A publication Critical patent/BE422840A/fr

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G01C15/02Means for marking measuring points
    • G01C15/06Surveyors' staffs; Movable markers
    • G01C15/08Plumbing or registering staffs or markers over ground marks

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Heat Treatment Of Steel (AREA)
BE422840D BE422840A (cg-RX-API-DMAC10.html)

Publications (1)

Publication Number Publication Date
BE422840A true BE422840A (cg-RX-API-DMAC10.html)

Family

ID=84425

Family Applications (1)

Application Number Title Priority Date Filing Date
BE422840D BE422840A (cg-RX-API-DMAC10.html)

Country Status (1)

Country Link
BE (1) BE422840A (cg-RX-API-DMAC10.html)

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