- Robert Ganz held some 100 U . S . and international patents related to surgical-dressing and automatic packaging machines.
- "' PFM Group "'is an Italian Form Fill Seal machines, automatic packaging lines and Multihead weighers employed in the food and non-food industries.
- For example, various electric and pneumatic transducers may fold and glue a cardboard box, fill it with product and then seal it in an automatic packaging machine.
- In these simple cases, no automatic packages are needed and cross-section analytical expression can be easily derived at least for the lowest approximation : the Born approximation also called the leading order or the tree level ( as Feynman diagrams have only trunk and branches, no loops ).