Collection

• Drexel History (1) + -
• Finding Aids (1) + -

Name

• Drexel Institute of Technology. (1) + -
• Franklin Institute (Philadelphia, Pa.). Research Laboratories. (1) + -
• Rippel, Harry C. (1) + -
• Rippel, Richard (1) + -
• Society of Tribologists and Lubrication Engineers. (1) + -

Subject

• Awards (1) + -
• Bearings (Machinery)--Design and construction (1) + -
• Brochures (1) + -
• Clippings (1) + -
• Correspondence (1) + -
• Diplomas (1) + -
• Drexel Institute of Technology (1) + -
• Drexel Institute of Technology--Alumni and alumnae (1) + -
• Machinery--Periodicals (1) + -
• Philadelphia (Pa.) (1) + -

• Publications (1) + -
• Research and development projects (1) + -
• Sliding friction (1) + -