for pencil feldhandrisse suitable paper to produce direct copies of itself with a hard pencil handrisse exported

• 1. THERMOPLASTIC BINDERS FOR CONTINUOUSLY PRODUCED LEADS FOR PENCILS,COPYING PENCILS AND COLOURED PENCILS [P] . 美国专利： US3821157A . 1974-06-28

  机译： 连续生产铅笔，复印铅笔和彩色铅笔的热塑性粘合剂

• 2. THERMOPLASTIC BINDERS FOR CONTINUOUSLY PRODUCED LEADS FOR PENCILS, COPYING PENCILS AND COLOURED PENCILS [P] . 英国专利： GB1235303A . 1971-06-09

  机译： 连续生产铅笔，复印铅笔和彩色铅笔的热塑性粘合剂

• 3. THERMOPLASTIC BINDERS FOR CONTINUOUSLY PRODUCED LEADS FOR PENCILS, COPYING PENCILS AND COLOURED PENCILS [P] . ES358800A1 . 1970-05-01

  机译： 连续生产铅笔，复印铅笔和彩色铅笔的热塑性粘合剂

• 1. Pencil-like mm-size Electron Beams Produced with Linear Inductive Voltage Adders (LIVA) [C] . M. G. Mazarakis, J. W. Poukey, D. C. Rovang, Proceedings of the XVIII international linear accelerator conference . 1996
• 2. The Autism Population: WISC-V Paper and Pencil Format and Q-Interactive Format Correlates [D] . Gardner, Sarah K. 2020
• 3. A Brief Online and Offline (Paper-and-Pencil) Screening Tool for Generalized Anxiety Disorder: The Final Phase in the Development and Validation of the Mental Health Screening Tool for Anxiety Disorders (MHS: A) [O] . Shin-Hyang Kim, Kiho Park, Seowon Yoon, 2021
• 4. LXXVIII. Notes on non-homocentric pencils, and the shadows produced by them.—II. Shadows produced by axially symmetrical pencils possessing spherical aberration [O] . William Bennett 1904
• 5. Comparison of Computer-Assisted Personal Interviews (CAPI) with Paper-and-Pencil (PAPI) Interviews in the National Longitudinal Study of Youth. NLS Discussion Papers [R] . Bradburn, N. M., Frankel, M. R., Baker, R. P., 1991