Article 56 - Metal Working Machines
- Section 4225 - Definitions. [Repealed]
- Section 4226 - Definitions. [Repealed]
- Section 4227 - Metal Shears
- Section 4228 - Metal Embossing Machines (Class B)
- Section 4229 - Nonrepeat Device (Class a). [Repealed]
- Section 4230 - Treadle Controls
- Section 4231 - Circular Metal-Cutting Saws (Class B)
- Section 4232 - Rolls (Class B). [Repealed]
- Section 4233 - Bar Stock Machine (Class a)
- Section 4234 - Wire Drawing Machines (Class B)
- Section 4235 - Planers (Class a)
- Section 4236 - Alligator Shears (Class B)
- Section 4237 - Abrading, Buffing and Polishing Machines (Class a)
- Section 4238 - Tumbling Barrels (Class a)
- Section 4239 - Forging Machines
- Section 4240 - Power-Driven and Air-Lift Hammers
- Section 4241 - Board Drophammers
- Section 4242 - Mechanical and Hydraulic Forging and Hot Trimming Presses
- Section 4243 - Inspection and Maintenance