Rotary positive displacement pump

Abstract

Claims

The ornamental design for a rotary positive-displacement pump, as shown and described.

Description

(1) 1. Rotary positive-displacement pump

(2) 1.1 : Perspective

(3) 1.2 : Perspective

(4) 1.3 : Front

(5) 1.4 : Back

(6) 1.5 : Right

(7) 1.6 : Left

(8) 1.7: Top