42 Engineering and research services for hermetic packages, hermetic seals, or covers, including new product development, problem resolution, and prototyping for applications that require hermetic seals; leak testing services for hermetic seals; fabrication of tooling onsite to meet the needs of hermetic sealing applications; engineering and research services related to designing and developing hermetic packages with seals or covers for electronic and scientific equipment; engineering and research services related to designing and developing systems and devices for providing hermetic packages, hermetic seals, and hermetic covers for electronic and scientific equipment